Coupling-head liner



Feb. 10,1931.

J. ROBINSON coUPLING HEAD LINER original Filed Feb. 9. 1922 v Ill.; v

Y 'iVOthat in service slight rotation or ,25 occurs.

Y' en the line Patented Feb. 1o, 1931Y f flosninonrnsom on NEW YORK; N.Y.

` l coUrLINGeHnAnLINER Application ledlebruary. t),` 1922, SerialkNo.535,279..V Renewed Aprilv 2, 1928. I

'This invention 'relates tovautomatic train pipe connectors andparticnlarly'to certain improvements by which Wearon the coupling headsisobviated'.l f Y Y i o In that class of automatic train'pipe'connectorsin whichthe hose of the train pipes are i provided with nipples or`.fittings detachably connected to the coupling head by bayonet orsimilar joints, it hasbeen found oscillation .of the fittings relativeto the head takes place. This oscillation causes'wear ofthepartsparticularly whencorroded with rust. Suchz wear tends to causeleakage atv theljoints and l5 in course 4of time necessitates discardingof thecoupling head resulting-in considerable` loss. Thisinvention Vaimsto 'overcome such destruction of the heads., This result isaccomplishedby inserting-a sleeve or lining I ofA rust vproofl steel -orother suitable `material in each of the op'emngsof the heads, suchsleeves being arranged between. the t'- tings and the walls of theopenings and lcovering theportion of the head in which Swear VBy thismeans vWear on theparts of Vthe head are' prevented'and'vvhatever wearoccurs takes place' on the fittingsV 4or'thegl sleeves which arecomparatively inexpensive Y andV can be easily replaced.- Another.advan-A f 30 tage of', the invention lies-in the fact that sleeves ofthis Vkind can be carried forward,

toward the front face yof theliead andshaped to form anist-proof seatfor,Y .the;`gasket VVmounted inthe head. -K

The nvention `n` one specific 'embodiment is illustrakcedintheaccompanying drawings, 'reforming part' ofV this. speciiication' land inf Figure ll is a sectional .view-fofjfpart of a coupling hetV d with-favfitting' mountedtherein and showing a sleeve, .or Ylining `between thefitting and wallsofjthehead; 'Y 1 Figure 2 isl angenlarge'drsection'alview showing aV partici/the structure villustrated Figure311s a view similar ftdFigure 2 f showinga slightly modified vformofgsleeve;

Figure 4 is enlarged `sectional view .0711 4--45v ofj'Figure 3,'Vtheviiittirigg.; `being jing 11 and rotating-it untilthe'lugs :15, 15

i vided l omitted and thefentire opening in the head being illustrated;vand v n v Figure 5 is a brokenside view of-.thesleeve suchas shown inFigures k1 and 2. l v In the drawings represents a portion' of y55 acoupling head. whichis .provided with a cylindrical opening 11 adaptedto receive a fitting or nipple 12 secured'to thetrain pipe hose;V Onopposite sides of the openingl 11 the head is provided withfrearwardly-pro- 6o jecting portions or dogs 13,`,13;,-in which grooves 14,14 arelformed, these grooves eX-Y tending radially outwardly from'the open-V iing 11. These groovesare adapted toreceivev lugs 15, 15 onv the fittingy12,'the:cooperating 6,5

lugs 15, 15 and grooves'l,`r 1&1 forming means by which .the tting isheldin the headIgThe rearwardly-projecting portions 13, V13. ofthe Ihead entend only p'artway around the' open-v with .such portions 13,18.It will therefore 'Y be understood thatthe fitting 12is Aconnected. totheihead by inserting thelsame in thelopen# lie in the grooves 14, 14,Y, 6 Y Thisfinventionas already noted'has'for its obj ect to preventweanuponthehead by the oscillation ofthe fittings, such -as 12,` in theopenings of the' head, this result beingaccomplished byinsertingsleevesor linings Vbeil so;

tweentheU fittings Vand the@y adjacent 'parts' of jthe head.y yThedrawings' show such asleeve applied to one;V opening in the -head itbeing understood thatQa'fplur'ality of sleeves or linings may beusedwheretheheadfis provided 85V with a plurality of openings.'V Asshownthe sleeve or lining isfarranged inY the opening j11of the lheadand Lcloselyfits the wall vofthe opening,L ...At its rear end thesleeveiis projlugs 21, 21l which are shapedfto. fity ,and cover l theWallsof'the grooves 1e' ofthefhead. `The portions21,N 2,1 lofthesleeve20 arejof'less-j Y l vlength tlran'the spacefbetween the adjacent:ends of the dogs 13, `13of theh'ead," 4soV that,95

the sleeve can-be insertedin the jhead-vvith'' the portions 21, 21inline". with the grooves Y 14,14 and then rotated, to move such por# f'tions of' ,the sleeve -into l the fgrooves. 'This generale. weiser@ ineenheden@ le' f 1ng11 and the groovesl/hzlii are coextensive .7,0

with outwardly projectingf'portions or A. 9o

, carried'byl the head. Y Y Y l 2. kjA' couplingghead for train pipeconne'c- Y eii'ectively secure the sleeve in this position lugs 22 areformed on the endsofl the portions 2l of the sleeve which lugs are bentinto! parts of the head and Aany wear that occurs is largely localizedon the iittingwhich can' be easily and cheaply replaced when too muchworn. The sleeve 20 may also be easily replaced when necessary.: Therust-proof character ofthe sleeve tends to largely reduce the wear onthe nipple" 12 which is aggravated bythe` presence of .rust and alsotends to preventfouling or rusting lof the .fitting in the head. i

l As shown inV Figures 1 and 2 the front end 24 of the sleeve 20 may bebent inwardly towardA its own axis to Vprovide a seat for the usualgasket 25, this gasket being held against "its seatby the front end-ofthe ltting1'2. This arrangement is particularly desirable since thesleeve 20, being made of non-corrosive materia-l, forms a rust-proofseat for the Vgasketl which prolongs the life of the gasket. If'desiredthe sleeve 20 may be made shorter as shown in Figure 3 so as toterminate adjacentV the front endof the "litting opening 11 being shapedto forma seat for the vgasket 25.

Havinglthus ldescribed my invention Awhat rI claim as new and desire tosecure by Letters Patent is ze 1. A coupling head ofthe kind Vdescribedhaving an openinga fitting Vmounted in theVV opening, interlockingmeanson said iitting Y'and head for reinovablysecuring saidtitting vinthe head, said: meansrincluding' a lug on one of said parts andagroovein the other.Y

adapted to receive Vsaid lug, aisleeve'arranged in said openingbetween`said Jitting and the walls of saidopening, said sleeve'being shaped totthe portion of Vsaid interlocking means tors having an Yopening adaptedLto. receive 'aritting and also having a groove extending i lradiallyfof'said opening and part 'way around` the "circumference of theopening, a litting havinga lug adapted-to be positioned-.within V saidgroove Aby rotating s'aid-itting within Yte lsaid opening, whereby'fthelittingjis locked inthe head, a sleevearranged insaid open-A Y"lingbetween the fitting and the"w`alls ofthe jopfening and extendingloverthe-wallsy of "said groove.

Y 3. Aeoupling head'fortraiii'pipeconneci tors 'ha'vinggf an openingandfalgo' llagvgy a,

grooveextending radially of said opening and part way around thecircumference of the opening, a fittinghaving a lugadapted to bepositioned in said groove by rotating the itting inpsaid opening, anda'liner of wear resisting iaterial arranged in said groove.-

" "4. Af'coupling-headjtor connectors-'having an opening and also havinga groove extending radially of said opening, a lug on Ysai'd headforming the rear wall of saidgropye and extending part way around ingandl 'extendingover'the walls .of said grooves, said sleeve havingportions engaging th'e'ends of said dogs whereby said sleeve Vis heldinsaid opening.; f

b. A-l oupling head fortrain pipe connectorshaving' an opening, a-sleeve Varranged l,within said opening, the portion of said sleeve adjaeent the coupling face of the head -being shaped'to forin a seattor'agasket,v said sleeve Vbeing-'adapted to receive aiitting forholdingp vsaid gasket against said seat. 12,-thematerial of the head 10adjacent the' within Vsaid opening, ai'itting Varranged within saidVsleev'e,`ithe front vend of said sleeve being bent inwardly towardthevaxisl of the sleeve to form a seat for a fga'sk'et,and agas?` ketmounted 'fin rsaid seat'and in front of said fittings f c.

8.'V Apoupling headffor train pipe connecesV iittingand havinggroovesextendingradiallyf i voutwardly from' said opening to vreceive'` lugs onv,said fitting',- a sleeve ofv wear-resisting rust-'proof material"arranged'. in said opening and having portions exten-ding over the wallssleeve-.insaidfopening.` Aif v Y 9. TA1 'coupling head lfor trai-n pipeconnec- -of said grooves,'-and means ktoi' securing said" communicating.witli1 said opening and adapted to 'r'eceive lugs on` said fitting, asleeve of; wear-resistingniaterial havingacy- A lindrical portionadaptedto fitj said openingf and also having outwardly vprojecting.'porl tions adapted tofvfit said' groove, andllugson Sad Sleeve,fofjengae'iiijgthe does 0.11 Said head Y l .to holdgsaid sleeveinsaidopening. L

ifa. *A Camping'iieaaffofjtrainf pipe een.;

nectors having an'opening, spaced dogs on said head adjacent the rearend of said opening, each of said dogs having a groove there- Y in, asleeve of relatively thin material having a portion adapted to .t saidopening,

tween said dogs, whereby said sleevemay be inserted in said opening androtated tof move said portions into said grooves.

l1. A coupling head for automatic train pipe connectors havingan openingthere- 'Y through, a fitting mounted inv said opening and movabletherein, the front end 'of said ittingkterminatin short of the coupling.face of the head, a gas *et arranged in said opening in iront of saidfitting and a sleeve of relatively thin and hard rust-proof material Y Yarranged in said opening and surrounding said fitting and said gasket.`

'In testimony whereof 1 hereunto am); my Y.

signature. A A Y JOSEPH ROBINSON.

